There is a very beautiful non-bawdy version of the song, by Burns, for those of you with tender sensibilities. It does not mention the afore-queried pow- the line is "Meet me on the Warlock Knowe" (no association with wicca)

When purple morning starts the hare
To steal upon her early fare
'T is to the woods I will repair
A wandering wi' my Davey

Oh meet me on the Warlock Knowe
Bonnie Davey, dainty Davey
'Tis there I'll spend he day with you
My ain dear Dainty Davey

The crystal waters 'round us fa'
The merry birds are lovers a'
The scented breezes 'round us blaw
Wandering wi' my Davey

When day expiring in the west
The curtain draws on nature's rest
I'll fly tae him that I lo'e the best
An' that's my Dainty Davey

Burns also used this melody for the "Gairdner wi' his Paidle"

This version is in the DT - (click)
-Joe Offer-